A new iPhone app lets iPhone users get free movies from the Redbox Video Rental Service.

If you don’t have an iPhone, you can get promo codes sent to your email address or cell phone, at redbox.com.

Redbox offers$1 video rentals from kiosks, typically found in U.S. grocery stores and pharmacies. The iPhone app works by giving you promotional codes that you enter into the machine to get free movies or discounts. You start off with one free movie, which pays for the 99 cent app.